Lhasa Prefecture covers an area of close to 30,000 km2 (12,000 sq mi). It has a central area of 544 km2 (210 sq mi)[33] and a total population of 500,000; 250,000 of its people live in the urban area. Lhasa is home to the Tibetan, Han, and Hui peoples, as well as several other ethnic groups, but overall the Tibetan ethnic group makes up a majority of the total population.